How to resolve : Error loading shared library libcrypto.so.1.0.0: No such file or directory (needed by /usr/bin/radclient)

I setup openwrt on Linksys EA6530.

I install freeradius2 instead of freeradius3.

But on openwrt has a libopenssl v1.1 which is not support for freeradius2.

I got error :
# radclient -h
Error loading shared library libcrypto.so.1.0.0: No such file or directory (needed by /usr/bin/radclient)
Error loading shared library libssl.so.1.0.0: No such file or directory (needed by /usr/bin/radclient)

So I need to install libopenssl v1.0 on my openwrt image builder.

I download file from https://downloads.openwrt.org/releases/17.01.6/packages/arm_cortex-a7_neon-vfpv4/base/libopenssl_1.0.2r-1_arm_cortex-a7_neon-vfpv4.ipk

Then put the file in directory : package

Then run command to build firmware from openwrt image builder

Hope this help.